Alibaba Cloud Linux 3 : 0176: samba (ALINUX3-SA-2022:0176)

high Nessus Plugin ID 236698

Synopsis

The remote Alibaba Cloud Linux host is missing one or more security updates.

Description

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2022:0176 advisory.

Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

CVE-2016-2124:
A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required.

CVE-2020-25717:
A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.

CVE-2021-20316:
A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.

CVE-2021-44141:
All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition. SMB1 with unix extensions has to be enabled in order for this attack to succeed.

CVE-2021-23192:
A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements.

CVE-2022-32742:
A flaw was found in Samba. Some SMB1 write requests were not correctly range-checked to ensure the client had sent enough data to fulfill the write, allowing server memory contents to be written into the file (or printer) instead of client-supplied data. The client cannot control the area of the server memory written to the file (or printer).

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 236698

File Name: alinux3_sa_2022-0176.nasl

Version: 1.1

Type: local

Family: Alibaba Cloud Linux Local Security Checks

Published: 5/14/2025

Updated: 5/14/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N

CVSS Score Source: CVE-2020-25717

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-vfs-iouring, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:python3-samba-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libsmbclient, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-common-tools-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-test, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-winbind-modules, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libwbclient-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-pidl, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:python3-samba, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libsmbclient-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-krb5-printing, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-krb5-printing-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-libs, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-winbind-clients-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-client-libs, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-winbind-clients, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-client-libs-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libwbclient-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-winbind, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-libs-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-vfs-iouring-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-common-tools, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-test-libs, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-winexe, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libwbclient, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-winbind-krb5-locator-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-test-libs-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-client-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-debugsource, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:python3-samba-test, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-winbind-krb5-locator, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-common-libs, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-winexe-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-common-libs-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libsmbclient-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-test-debuginfo, cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-winbind-modules-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-client, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-winbind-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:python3-samba-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:ctdb, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:samba-common, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:ctdb-debuginfo

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Alibaba/release, Host/Alibaba/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/31/2022

Vulnerability Publication Date: 11/9/2021

Reference Information

CVE: CVE-2016-2124, CVE-2020-25717, CVE-2021-20316, CVE-2021-23192, CVE-2021-44141, CVE-2022-32742

Detections

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